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Literature summary extracted from
- Mammalian 3-oxosteroid DELTA5-DELTA4-isomerase. Solubilization by calcium ions and kinetic characteristics toward C19 and C21 steroids (1972), Eur. J. Biochem., 31, 464-469.
KM Value [mM]
| EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 5.3.3.1 | 0.011 | - |
5-Pregnene-3,20-dione | - |
Comamonas testosteroni |  |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 5.3.3.1 | Comamonas testosteroni | - |
- |
- |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 5.3.3.1 | 5-Androstene-3,17-dione | - |
Comamonas testosteroni | 4-Androstene-3,17-dione | - |
? | |
| 5.3.3.1 | 5-Pregnene-3,20-dione | - |
Comamonas testosteroni | 4-Pregnene-3,20-dione | - |
? | |
pH Optimum
| EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|---|
| 5.3.3.1 | 8.5 | - |
- |
Comamonas testosteroni |
pH Range
| EC Number | pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|---|
| 5.3.3.1 | 7.5 | 9 | pH 7.5: about 40% of maximal activity, pH 9.0: about 60% of maximal activity | Comamonas testosteroni |
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Release 2023.1 (January 2023)
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